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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Which is the better to use smooth oil in summer? Is it better to use smooth oil in summer?
In the summer, changing the season to replace the smoother oil with higher viscosity has become one of the main points of the summer maintenance of the broad owner. However, the reporter recently found a fresh appearance: because of the lack of knowledge of the smooth oil viscosity; some owners over-fire to seek replacement High-viscosity smooth oil; even pouring the oil out to "hand" to verify the viscosity, and some owners replaced the smooth oil and found that the oil pressure gauge was raised; but the suction film sludge increased; the power also dropped significantly. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
I wanted to take good care of my car; I didn't expect to increase the burden of my car; let the car "heart and soul". This makes many car owners puzzling: how to choose smooth oil in summer? Is it better to use smooth oil in summer?
Smooth oil is not the higher the viscosity, the better the smoothness of the oil. The viscosity of the oil is undoubtedly crucial for the normal operation of the engine. In order to avoid the contact surface wear between the moving parts of the engine; the smooth oil must have a satisfactory viscosity; Underneath can form an oil film between moving parts; then make the car engine work smoothly.
However, maintenance professor Wang Rongfa informed reporters that the use of slick oil with excessive viscosity will have at least two levels of disadvantages. First, when the viscosity is too high, it will affect the degree of engine launch; it is likely to form when the engine is started. Severe wear and tear. Because the smooth oil viscosity is too large; the activity is slow; the oil pressure is high; but the smooth oil passing volume is not much; it can not be added to the conflict appearance in time. The oil circulation speed is also slower; its cooling and heat dissipation will change. It is very bad; then it causes the engine to overheat. Because the smooth oil circulation is slow; the number of passes through the smooth oil filter is reduced; thus it is difficult to remove the worn metal chips, carbon particles and dust from the conflicting appearance in time. Go out.
Another disadvantage of using a viscous oil with excessive viscosity is energy consumption. Because the viscosity is too large; the conflicting force between the external parts of the machine increases; in order to overcome the increased conflicting force, it takes more fuel; then it forms energy. The big ruin. It is known; currently in foreign countries; smooth oil low viscosity has become a world trend. At home; although there is no mandatory demand for smooth oil energy saving; but low viscosity will be the future development trend.
Therefore; Wang Rongfa reminds the broad owner; do not use smooth oil with excessive viscosity; can not think that the greater the viscosity, the better.
How to choose the viscosity grade correctly in summer, so how to choose smooth oil in summer? Wang Rongfa advocates; under the condition of ensuring smoothness; according to the temperature scale, engine temperature and practice condition of the application; as far as possible, the smooth oil with small viscosity is used. For the engine with better vehicle condition and less wear, the viscosity can be selected to be smooth. Oil; for the engine that has been worn more severely and the gap is already larger; the smoother oil with slightly higher viscosity can be used properly.
In addition, because the temperature difference between summer and winter is larger than that of the summer; the oil pressure gauges in the summer are all low. However, only the reasonable scale of the rules in the manufacturer's driving manual is attributed to the normal appearance; the broad owner does not need to be overly frightened by this. If it is oil pressure The table is weird or low; it is not reasonable to violate the normal situation; then it needs to be completely checked; see if there is any problem with the engine; for example, the sensor is broken, the oil is blocked, etc. Do not see the oil pressure gauge is low; desperately choose a very high viscosity smooth oil.
Under normal conditions; good oils follow the rise in temperature; viscosity changes will be steeper; and will not become agile, such as Great Wall, Shell, Mobil and other famous brands; although the appearance of "seeing" the viscosity is not very high; The viscosity of the application is very outstanding, and some brands are very "sticky" when they look "appearing"; but they are not so useful; they show a fierce contrast. It seems that the broad owner chooses smooth oil and still has a brand. The smooth oil manufacturers will supply the products with a smoother oil of different viscosity grades for all kinds of models; just select the smooth oil with the appropriate quality grade and viscosity grade according to the normal habit.
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Is it better to use smooth oil in summer?
Source: Bearing network time: 2014-08-09